Oil-cup



F. X. DEVLIN.

OIL CUP.

APPLICATION FILED MN. :4. 1918- 1,3 1 1,327. Patented July 29, 1919.

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,rnaivois xpnvnnv, orfciiIcAGo, ILLINOIS.

Specification of Letters Patent. Patented uly 29 191% Application filedJanuary 14,1918. Serial No. 211,765.

To all whom it may concern:

Be it known that L'FRAINCIS X. DEVLIN,

a citizen of the United States, residingat Chicago, in the county ofCook and. State of Illinois, have inventedcertain new andthe followingis a specification.

My inventionrelates to oil cups andhas for its primary object theprovision ofjan improved construction whereby the cap clos ing spring isprotected from the accumulation of dirt and positioned for immersion infresh oil at each filling of the cup. I Another object-is to provide animproved construction for holding the cap of the oil cup open againstthe force of the closing spring. As a further, object the parts are soarranged as to permit unobstructed access to themain oil-holding chamberof-the cupfor purposes of cleaning and filling.

Other objects and advantages of themvention will appear from thefollowing description taken in conjunction with the. accompanyingdrawings, wherein:

Figure 1 is a top plan View of the invention with the cap closed; Fig. 2is a similar view with the cap opened; Fig. 3 is a sec,- tionapproximately on line ofv Fig. 1 Fig. 4 is a side elevation withthecover opened and a portion sectioned approximately on line l1 of Fig. 2;F ig. 5 is a rear elevation of the invention with the cap closed; Fig. 6is a fragmentary detaillview illustrating the arrangement whereby thecap and the oil cup arewedged together in position, the spiraldivergence of the-wall of the oil cup with respect to the cap pivotbeing exaggerated.

Reference numeral 10 indicates generally the preferably vertical wall ofa tubular oil cup, which is reduced at itslower end, as at 11, in orderthat it may convenlently fit within the aperture provided in a bearing.-Reference numerall2 in Figs. 2 and 3 indicates generally the main oilholding chamber of the oil cup. .i

At its upper portion-the wall 10 of the oil cup islaterallyextended to:form, an-oll holding recess 13, having a rear wall 14: and parallel sidewalls15 and16,-thesewalls of the recess being continued to the :upperend of the tube so that theylie flush with and form a part ofthe'upperhorizontal edge 17 of the oil cup. The recess 13- has ,unob:structed communication, and; preferably useful Improvements in Oil-Cups,of which throughout itslen'gth, with the main chamber 12 and is sovformed that it drains from itsv bottom extremity into that chamber. 7 Ahorizontal pivot shaft 18 is fixed near its ends ,inthe walls 15 and 16of the recess, the- -mai-nibody of. the shaft lyin within the recessiandbelow the upper e ge thereof, and the extreme ends'of the shaftprojecting respectively from thewalls 15 and 16 for engagementwith lugs19 and 2l which depend from a cap 22, shaped to cover the chamber andthe recess. Coiled about the shaft 18 is acap closing spring 23, the end24 of which is fixed to the cap 22 and the other end 25 of which isfixedly connected to the wall of the recess .13. If desired, the end 25of this spring may be attached to the pivot shaft 18 inasmuch as thatshaft is preferably brazed into the walls 15 and 16 to prevent leakageof oil. In attaching theend. 2 1 to the cap,- I prefer to drill the capwith ahole into which the end of the spring closelyfits andthen brazevor solder the end to the cap. j

,The upper end26 of the rear wall 14 of the recess is flat as regardshorizontal extension, but is curved so that, as shown in Figs. 3 and 4it diverges from the axis of the shaft18. As illustrated, thisdivergence ofthe wall 26 is in the direction of the openingv movement ofthe cap 22. At its rear end the cap, is curved downwardly to form a tail27 which externally overlapsthe wall 26 andhas its edge .28 positionedso close to wallz26' astocause the'tailto wipe against andifinally wedgefrictionallyupon the wall 26 when the cafiisfullyopened. V

In using this oil cup, and considering the cup closed as in Fig. 3, theoperator opens the cap into the substantially vertical positionillustrated in Fig. 4:. By reason of the gradually diverging relation ofthe portion 26 0f the rear wall with respect to shaft 18, the tail 27 ofthe cap will wedge against wall 26 with suflicient friction to overcomethe closing force of the spring 23, thereby maintaining the cap in theopen position shown in Figs. 2 and 4. The operator now fills the oil cupimmersing both the shaft 18 and. all Jof-thejspring 23, except the. end24. He now closes cap 22, as illustrated in Figs. 1, 3 and whereupon theforce of the spring 23 holds the cap closed. If the cup has been filledto the-upper edge 17 this closing of the cap will immese in the oilevery portion of the spring 23, except the tips thereof, which arebrazed into the cap and wall.

It is an advantage of the present invention that the spring 23 receivesa fresh bath of oil in each filling of the cup, this occurring by reasonof the fact that the recess 13 forms a. portion of the oil feedingchamber, and as the oil in the cup flows out into the bearing all theoil in the recess drainsoff also into the bearing and is used. Thespring therefore is not immersed in a body of oil that remainsstationary in a separate recess to dry out and gum the spring, butislubricated with the same frequency as the bearing itself. Whenconsidered in connection with the other advantage of having the springinclosed from the air and dust and dirt carried thereby, it will be seenthat my improved construction tends to prolong the life of the springand to cause it to Work easily at all times.

A further advantage of my improved arrangement is best illustrated inFig. 2, wherein it will be seen that when the cap 22 stands in openposition, the cap, pivot shaft and spring are all laterally clear of themain bore 12 of the oil cup. The result of this arrangement is that thecleaning and filling of the cup are facilitated by removal of allobstacles to direct access.

It is contemplated that in the manufacture of this invention, the bodyportion of the cup will be formed from a tube originally of the diameterof the reduced portion 11 and that the portion 10 of the cup will bespun out in the well known manner. The walls of the recess 13 may bereadily forced out by a die from the wall of the portion 10. The cap 22is a plain sheet metal punching bent to form the lugs 19 and 21 and thetail-27. The lateral edge of the tail 27 may be brazed to the rear edgeportions of the lugs as illustrated in the drawings or, if it be desiredto provide a greater degree of resiliency in the tail of the cap thisbrazing may be omitted. Cheapness of construction and ease ofmanufacture are therefore further advantages of my invention.

I claim: 7

1. The combination with an oil cup, of a cap therefor pivoted to the cupon a. horizontal axis, and a cap closing spring mounted in theoil-feeding cavity of the cup clear of the main bore thereof.

2. The combination with an oil cup, of a horizontal shaft fixed near itsends in the wall thereof and traversing the oil-feeding cavity of thecup, a. cap pivoted on the shaft, and a cap closing spring coiled aboutthe shaft and lying within said-oil-feeding cavity.

3. The combination with an oil cup, of a horizontal shaft fixed near itsends'in the wall thereof and traversing the oil-feeding cavity of thecup, a cap pivoted on the shaft,

and a cap closing spring coiled about the shaft and lying within saidoil-feeding cavity, the ends of said spring being respectively connectedto said cup and cap.

4. The combination with an oil cup the wall of which is extendedlaterally to form an oil-holding recess draining at its bottom into themain oil cavity of the cup, of a cap for the cup and recess pivotallysupported on the wall of said recess, and a cap closing springpositioned within the recess below the upper edge thereof and having itsends respectively connected to the cup and cap.

5. The combination with an oil cup, of a cap pivoted thereto, the capand the wall of the cup being shaped to wedge together when the cap isin open position.

6. The combination with an oil cup, of a cap pivoted thereto on a givenaxis, a portion of the wall of the cup being formed eccentrically withrespect to-said axis and the cap being shaped to wedge against saidportion of the wall in its opening movement.

7. The combination with an oil cup, of a cap pivoted thereto on a givenaxis, a portion of the wall of the cup diverging from said. axis, andthe cap being shaped to wedge against said diverging portion of the wallin its opening movement.

8. The combination with an oil cup, of a cap pivoted thereto on a givenaxis, a portion of the Wall of the cup diverging eccentrically from saidaxis in the direction of the opening movement of the cap, and a tail onthe capv exteriorly overlapping the diverging-portion of the wall andpositioned to wipe against the sameduring said opening movement.

9. The combination with an oil cup the wall of which is extendedlaterally to form an oil-holding recess, of a cap for the cup and recesspivoted to the cup onran axis which traverses the recess, one wall ofsaid recessparalleling said axis and diverging eccentrically therefromin the direction of the opening movement of the cap, and the cap beingshaped to overlie the diverging portion of the recess wall and to wipeagainst thesame during said opening movement. 7 V

10. The combination with an oil cup, of a cap pivoted thereto on a givenaxis, a portion of the wall of the cup being curved eccentrically withrespect to said. axis and intervening between the cap and its axis.

11. The combination with an oil cup having amain tubular oil-holdingchamber and a lateral oil-holding recess the bottom of which drainsinto-said chamber, of a pivotshaft traversing the recess and bearing inthe wall thereof, a cap for the cup and recess pivoted on said shaft,and a cap closing spring coiled about the'shaft and having its endsrespectively connected to the cup and cap; the cap, shaft and spring 10cess pivoted on said s standing laterally clear of the main bore of saidchamber during the open position of the cap.

12. The combination of an oil cup having a main tubular oil-holdingchamber and a lateral oil-holding recess the bottom of Which drains intosaid chamber, of a pivot shaft traversing the recess and bearing in theWalls thereof, a ca for the cup and reliaft, and a cap clossaid chamberduring the open position of 15 the cap; the wall of the recess and saidca being shaped to Wedge together when the cap is in open position.

FRANCIS X. DEVLIN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

v Washington, D. 0."

